Loaded with 400 mg caffeine per two scoops, Nuclear X will get you fired up for every workout. Our scientifically formulated pre-workout powder will help you achieve your potential every time. We left out the junk...We left out DMAA...Resulting in our strongest pre-workout supplement yet. Use in conjunction with an intense daily exercise program and a balanced diet including an adequate caloric intake. This is a stimulant based supplement; always check with a physician or health care provider prior to taking supplements and exercising.